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Elements and Performance Criteria

  1. Assess the client
  2. Select impression tray and modify if required
  3. Prepare alginate impression material
  4. Perform impression taking procedure
  5. Assess the impression
  6. Decontaminate the impression

Required Skills

This describes the essential skills and knowledge and their level required for this unit

Essential knowledge

The candidate must be able to demonstrate essential knowledge required to effectively do the task outlined in elements and performance criteria of this unit manage the task and manage contingencies in the context of the identified work role

This includes knowledge of

Applied oral anatomy

dentition arrangement of the teeth naming and coding of teeth

structures of the oral cavity hard and soft palate lateral and posterior borders of the oral cavity tongue and floor of the mouth

teeth form and function

Client management techniques

Current infection control guidelines

Legal and ethical issues relating to informed consent duty of care confidentiality and disability awareness

Principles and practices which underpin interpersonal communication

Principles of quality assurance and work effectiveness

Relevant occupational health and safety policies and procedures

The rationale and objectives for the taking of impressions for study models

Essential skills

It is critical that the candidate demonstrate the ability to

Consistently prepare clients environments instruments and materials for impression procedures

Consistently take a range of impressions

Consistently comply with occupational health and safety procedures

Consistently implement standard precautions

Consistently follow procedures to ensure client safety during impression procedures

In addition the candidate must be able to effectively do the task outlined in elements and performance criteria of this unit manage the task and manage contingencies in the context of the identified work role

This includes the ability to

Consistently apply standard precautions during impression taking procedures

Consistently select and prepare equipment and materials required for the impression procedure

Consistently take an impression for study models for

clients who are edentulous

clients who are dentate

Consistently demonstrate interpersonal skills when relating to people from a range of social cultural and religious backgrounds and physical and mental abilities

Consistently demonstrate communication skills as required in fulfilling the job role as specified by the dental practiceorganisation including

acknowledging and responding to a range of views

active listening

asking for clarification from client andor carer

asking questions

negotiation

Consistently deal with conflict

Consistently work with others and display empathy with client and relatives

Consistently use problem solving skills required including

planning and organising personal work activities

using available resources

Consistently maintain equipment instruments and materials

Take into account opportunities to address waste minimisation environmental responsibility and sustainable practice issues

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria Required Skills and Knowledge the Range Statement and the Assessment Guidelines for this Training Package

Critical aspects for assessment and evidence required to demonstrate this competency unit


The individual being assessed must provide evidence of specified essential knowledge as well as skills

Observation of workplace performance is essential for assessment of this unit

Consistent compliance with infection control guidelines Australian and New Zealand Standards and legislative requirements

Consistency of performance should be demonstrated over the required range of workplace situations

Context of and specific resources for assessment


Where for reasons of safety access to equipment and resources and space assessment takes place away from the workplace simulations should be used to represent workplace conditions as closely as possible

Method of assessment

Evidence of essential knowledge and understanding may be provided by

traditional or online computerbased assessment

questions during workplace assessment

written assignmentsprojects

Case study and scenario as a basis for discussion of issues and strategies to contribute to best practice

Staff andor client feedback

Supporting statement of supervisor

Authenticated evidence of relevant work experience andor formalinformal learning

Role playsimulation

Access and equity considerations

All workers in the health industry should be aware of access and equity issues in relation to their own area of work

All workers should develop their ability to work in a culturally diverse environment

In recognition of particular health issues facing Aboriginal and Torres Strait Islander communities workers should be aware of cultural historical and current issues impacting on health of Aboriginal and Torres Strait Islander people

Assessors and trainers must take into account relevant access and equity issues in particular relating to factors impacting on health of Aboriginal andor Torres Strait Islander clients and communities


Range Statement

The Range Statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts.

Equipment and instruments may include:

Examination mirrors

Mixing bowl

Spatula

Stock impression tray

Storage container for transportation

Wax

Personal protective equipment may include:

Examination gloves that comply with AS/NZS 4011 and surgical gloves that comply with AS/NZS 4179

Footwear to protect from dropped sharps and other contaminated items

Glasses, goggles or face-shields

Gowns and waterproof aprons that comply with AS 3789.2 and AS 3789.3

Guidelines for latex allergic clients and staff.

Surgical face masks that comply with AS 4381

Impression procedures may include:

Primary impressions

Impressions for:

study models

protective mouthguard

Impression trays may include but are not limited to:

Custom impression trays

Stock impression trays

Standard precautions must include:

Appropriate reprocessing and storage of reusable instruments

Personal hygiene practices especially washing and drying hands before and after client contact

Safe disposal of clinical waste

Surface cleaning and management of blood and body fluid spills

Techniques to limit contamination

Use of personal protective equipment

Common problems may include:

Bubbles on occlusal surfaces caused by the presence of saliva

Lack of labial sulcus extension

Nausea

Voids from inadequate material